４年生(Eネイティブ)理科
Natural Sciences and Technology Grade 4-B
Energy and Change
Chapter 2. Energy around us p. 33
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「エネルギー」の入力と出力
2.2 Input and output energy (以下、改行を入れています）
Whenever anything happens, energy is transferred from one component into another.
People, machines and appliances need an energy input to work.
They also have an energy output that may be useful.
Let's look at some examples.
Example 1:
A girl is running a race. In order for the girl to have energy, she needs energy from somewhere.
Her input energy is the chemical energy from the food that she ate.
By running the race, she is giving out energy in the form of movement energy and heat.
次の例に挙げられているのはTVです。
Example 2:
Your TV will only work if it is plugged in. It needs energy to work.
While watching TV, ( ) is the input and ( ) is the output.
( )の中に入るのは？